I've been experimenting with using 'target'. (Snow Leopard)
If window 1 is in column view and I do this ...
set target of window 1 to alias "Work_Files:Mail-Safe Archive:_Mail-Safe Folder:2010:2:4:"
then the original window closes, then a new window opens in list view showing the alias above.
It may appear to work correctly on your Mac, but not mine. Why?
On my Mac the folder referenced above happens to have list view, but on your Mac all of the sub-folders of window 1 may have column view. At least that's what I think is happening.
I'm beginning to smell a bug, here. Changing the target of a window should never (I think) open or close a window, just change what appears in the referenced window.